Thread-end-fastening machine.



H. E. ENSLIN.

THREAD END FASTENING MACHINE.

.AEPLICATION FILED DEC. 4, 19l3 Patented Nov. 13, 1917 6 SHEETSSHEET I.

l lllllllllll Il miz es'ws:

7 H. E. ENSLIN. THREAD END FASTENING MACHINE.

. APPLICATION FILED DEC. 4. I913. 1 %,Q75. Patented Nov. 13, 19 17.

6 SHEETSSHEET 2- H. 'E. ENSLIN. THREAD END FASTENING MACHINE.

APPLICATION FILED DEC. 4, 1913. I Patented Nov. 13, 1917.

SHEETS-SHEET 3- Jrlverot'or:

Ifl/lwss'es:

H. E. ENSLIN. THREAD END FASTENING MACHINE.

APPLICATION FILED DEC-4.19l3- 7 1,243,075. Patented Nov. 13, 1917,

6 SHEETS-SHEET 4- H. E. ENSLIN.,

THREAD END FASTENING MACHINE.

APPLICATION FILED DEC.4. l9l3- Patentd Nov. 13, 1917.

e SHEETS-SHEET s.

lllll Yul Inventor.-

- H.E ENSLIN. 1111115110 END sums MACHINE;

- APPLICATION FILED DEC. 4. 1913- 13416 075. I Pabenmd Nov. 13, 1917.

. I 6 SHEETSSHE ET 6.

lifiiltss'es'x 1760191110): 1

TED -,S ?AT A OFF C -c HERBERT E. ENSLIN, OF MALDEN; MASSACHUSETTS, assrcrivon To UEITEI) srroE'f MACHINERY COMPANY, GE PA'IERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

To all whom it may concern: V

,j Be it known that I, HERBERT E. ENsLIN, a citizen of the United States, residing at Malden, in the county of Middlesex and State of Massachusetts; have invented certain new and useful Improvements in Thread- End-Fastening Machines; and Ido hereby declare the following to be a full, clear. and exact description of the invention, such aswill enable others skilled in the artto which it appertains to make and use the same.

This invention relates to machines for fastening-or tying the free ends of the thread left at the extremities of a finished seam. w

The machine embodying the present invention is particularly designed for fastening the free ends of threadat the extremitiesof a seam by which a series of buttonsis attached to theupper of a shoe. It is to be understood, however, that the machine is not limited to such use, but that-it may be employed in fasteningthe free ends Ofthe thread at the extremities ofi'variou's kinds of seams.

After the seam by which a series of buttons is attached to the upper of the shoe is completed, a free end of thread 1s left at each end of the seam projecting from the upper on the side thereof opposite that on which the buttons. are attached; Unless these free ends of thread are fastened in some manner. the strainupon the buttons at the ends of the seam, when the shoe is buttoned, will pull the ends of the thread" the end of the thread. back through said loop on the side of the free thread nearer the end of the seam. This operation,.which has heretofore been performed by hand, requires some skill and consumes considerable time. On account of the small size of the loop of thread of the seam, it is quite diflicult to draw the free end of the thread between this loop and the upper.

The primary object of the present invention is to produce a thread end fastening machine by which the free end of the thread THE An-E n-EAsTEnInG MAcnnvE.

at the endof a finished seam may befastened; more-quickly and easily than canbe doneby hand. i

. Specification of Letters Patent. Pat entdN v 13, 191'7, Application filedDecember 4, 1913. 7 Serial No.804,616 v With thisobject in view, the invention comprises device fordrawing the free end of the thread beneath a loop of thread formmg part of the seam, which is constructed for insertion between said loop and the upper or material in which the seam is formed and means is provided for relatively movlng said device and the work to withdraw the device from beneath the thread loop so as to draw the free end of the thread be-- neath the loop. In the preferred form of the invention, said device comprises rela' timely le jaws which are opened and closed to recelve and. grip the thread.

A further feature'of the invention .con- 7 templates the provision-of a thread finger about which the free; thread is drawn. in' placing the work in fastening position soas' to lnsure a predetermined length of the free thread between the work and "thesthread drawing device. This predetermined length of free thread enables the device by which the threadis drawn beneath the loop of the seam to be withdrawn entirely from the loop', and insures the tightening of the knot formed Other features of the invention consist of certain novel constructions, arrangements and combinationsof parts the advantages of which will be obvious to those skilled in.

the art from the following description.

1 In the drawings illustrating a machine embodying the various features of the invention in theirpreferred forms, Figure 1 is a view in front elevation of the machine; Fig. 2 is a view in side elevation of the machine looking from the left Fig. 3 is a View in planof the machine; Fig. at is a-view in sectional elevation of the machine taken substantially on the line 44 of Fig. 1; Fig. 5

is view in sectional elevation taken substantially on the line 55 of Fig. 1, with a portion of the mechanism broken away; Fig. 6 is a detail'view in front elevation of a portion ofthe thread cutting device; and

Figs. 7, 8, 9 and 10 are diagrammatic views fastening or tying operation.

The" machine is provided with a thread gripping device for gripping thefree end of the thread which comprises relatively illustrating the several steps in the thread movable thread gripping jaws indicated respectively at 2 and 4, the forward extremities of which are so shaped that when the jaws are closed the gripping device may be readily inserted beneath a loop of thread forming part of a seam. VVh'en the gripping device has been inserted beneath this loop of thread, the jaws are opened to receive the free end of the thread between them, and after the thread has been placed between the jaws-thereof, the jaws are closed to grip the thread. The jaw 2 of the gripping device is fixed, and is carriedonthe forward endv of an arm 6 which is'mounted for forward and rearward adjustment on the frame, so that the gripping device may be placed in proper position with relation to the other parts of the machine to cooperate therewith. The arm 6 isprovided with a tongue which fits in a-suitable groove in the frame, and the arm is secured inad justed position on the frame by means of a bolt 8 passing through a slot in the frame and screwed into the arm. The movable jaw 4 of the gripping device is carried upon the forward end of a lever 10 which is pivoted on a stud 12 secured in an upwardly eX- tending car on the arm 3. The lever '10 carries a roll 14 at its rear end, and is actuated to open the jaws of the gripping'device to receive the thread, by the movement of an arm 16 pivoted on. a shaft 18 and provided with a forked forward end which embraces the roll 14. The arm 16 is actuated by means of a lever 20 also pivoted on the shaft-18 and carrying a cam roll 22 which engages a cam groove 24 in a cam disk 24 secured to the main shaft 26 of "he machine. The lever 20 is connected with 'm 16 by means of a bolt 28 passing l-cos through said arm and screwed into forwardly extending arm 30 on tie lever 20, a nut 32 beingthreaded on the upper end of the bolt to engage the upper face of the arm 16. This connection between the arm 16 and the lever 20 is such that the arm is actuated by the lever only in a direction to open the jaws of the gripping device, and provides for lost motion between the arm and the lever when the thread has been gripped by the gripping jaws. By adjust ing the nut 32 on the bolt 28, the operation of the gripping device may be regulated. The movable jaw of the gripping device is actuated to grip the thread by means of a coiled spring 34 which insures the closing of the jaws to grip the thread in a reliable manner regardless of the diameter of the thread which is passed between them.

i In Figs. 7 to 10 inclusive is shown section of an upper having a series of buttons attached thereto by a seam formed by a button sewing machine of a type now in common commercial use. sidered necessary to illustrate the seam for- It'has not been con mation on the button side of the upper, since the manner in which the machine of the present invention operates to fasten the end of the thread depends only on the seam formation on the inside of the upper or the side opposite that on which the buttons are attached. It will be noted from an inspection of these figures that on the innerface of the upper, at the end of the seam, there is a relatively short loop Z2 and a long loop 0, and that the free end of the thread emerges from the work on the upper side'of the long loop 0 and at some distance from the outer or left-hand end thereof. In presentingthe work'to the gripping device, the upper is held by the operator with the end of the seam at the left and with the free end of the thread emerging from the work on the side of the long loop 0 away from the operator, and the work is thenmanipulated to insert the gripping device, the jaws of which are at that time closed, beneath the long loop 0, as shownin Fig. 7. The operator then grasps the free end of the thread and draws it beneath the gripping device and over thework to form a loop, as indicated at (Z, one leg of which lies across the loop a, as shown in Fig. 8. In order toinsure a length of the loop 6K in the free end portion of the thread, suflicient to enable the grippingdevice to be drawn free from the loop 0 and the thread to be fastened properly, an abutment or finger is provided about which the end of the thread is drawn in placing it in fastening position. In the illustrated construction, this abutment consists of a downwardly projecting finger 38 formed on a plate mounted for forward and rearward adjustment on the arm 6 and secured thereto by means of a screw 40. The provision for adjustment of this abutment or finger enables the length of the loop formed in the free end portion of the thread to be varied to suit the requirements for the satisfactory fastening of the end of the thread.

WVhen the free end of the thread has been placed by the operator in the position illus trated in Fig. 8, the aws of the gripping deviceare opened toreceive the thread, and a thread receiving hook is projected between said aws, which, after receiving the thread, retracts to draw the end of the thread between the gripping aws. This hook is indicated at 42, and is mounted to reciprocate longitudinally in a direction transverse to the gripping device. Before the jaws of the gripping device are opened, the hook 42 cccupies the position illustrated in Fig. 7, with relation to the gripping device. Vhen the jaws of the gripping device have opened, the hook 42 is projected between said jaws to bring the hook into the position illustrated in Fig. 8. The end of the thread is then. placed by the operator within the hook,

42 is secured to the lower side of a slide 44- which is mounted to slide laterally with re-' lation to the gripping "device in guidesformed in a forwardly projecting arm 46 on the frame of the machine. The hook is secured to the slideby passing the shank of the hook througha bore in a block 48," and through a registering borein the head of a screw 50 which passes through both the block and the slide. A nut 52 is threaded on the upper end of the screw, and the hook is securely held in position with relation to the block and the slide by tightening this nut. Uponloosening the nut the hook maybe adjusted with relation to the slide. 'The slide 44 is reciprocated in its guides to give the required movements to the hook during the operation of the machine by a cam actuated lever 54' pivoted ,on a stud 56, and provided with a fork at its forwardend which embraces a cylindrical portion ofthe nut 52, saidlever being provided with a canfroll 58'e ngaging in a cam groove60 in acam disk 62 mounted on the main shaft 26;

When the free end portion of the thread has been drawn between the jaws of the gripping device, the jaws of the gripping device are closedto grip the thread, and the gripping device and the work are then moved relatively to withdraw the gripping device from beneath the loop of thread under which it lies to draw the portion of the thread. gripped between the jawsof the gripping device beneath the, said loop onthe side ofthe end portion of the thread nearer the end of the seam, and to draw thethread taut between the gripping devices and the work to complete the fastening or tying op eration. The relative movement between the gripping device and the work to withdraw the gripping device from the loop of the seam is preferably produced by advancing' the work while the gripping device is stationary. In the construction illustrated, the means for advancing or moving the work forwardly with relation-to the gripping device comprises a pusher 64, theupper end of which is forked and embraces the arm 6 and the lever 10 upon which the respective gripping jaws of the gripping device are carried. After the end portion of the thread is drawn between the jaws of the gripping device, andthe said jaws are actuated to grip the thread, the pusher 64 is advanced to engage the'work and to puslithe work forwardlywith relation to the grip ping'devic'e', thereby withdrawing the gripping device from the loop of thread beneath which it was inserted, and drawing'the'free end ofthe thread beneath the loop. Thefor ward movement of the pusher-is continued The pusher 64 untilthe thread is drawn-taut between the gripping jaws and the work. Fig; 10 illus trates the relative positions of the gripping device and pusher at the completion of thisstep in the operation, andshows clearly the manner in which the free end portion of the thread is drawn about the loop c to fasten the thread end. The character of the of the thread between the gripping device and the work is placed with relation to the gripping device and the thread loop of the seam; 4 i r I is carried on the forward end-0f a slide 66 which is mounted to slide forwardly and rearwardly in suitable guides formed in the frame of the machine.' The mechanism for giving the required movements to the pusher during the operation of the machine comprises a link 68 connecting the rear end .of the slide 66 with one arm of a bell crank lever 70 pivoted on a shaft 72. The other arm of the bell crank lever 70 is provided with a slot for thereception ofa block 74 pivoted on a pin 76 securedto a' slide 78 mounted for vertical sliding movement in suitable guides'in the'frame. The

upper end of the slide 78 carries a-cam-roll a cam groove 82 in the which engages cam disk 62; I 1 .The machine is also provided with'a-jcuttingdevice for severing the end-portion of, i the threadbetween the gripping deviceand thework at the completion of the fastening] operation.v In the present embodiment of r the invention this cutting device is normally out of thread cutting position, and is moved into thread cutting positlon atthe proper time in a cycleof operations. 'In the con struction illustrated the' thread cutting de vice comprises .pivotally connected shear blades 84 and 86 which are normally supported above the gripping device. The blade 84- of the cutting device has no pivotal movement, this blade being formed upon an arm 88 secured to a vertically movable slide hereinafter described. The movable blade'86 of the cutting device isformedon a: lever 90 which is pivotedto the arm 88 by means of a screw stud 92. The blades of the cutting device are normally held in relatively open position by means of a spiral spring 9.4,one end of'which issecured to the lever 90 and the other to the arm 88.

The movement of the lever 90 jina direction to open the blades is limited by contactin'g lugs 96 and 98. form'edrespectively on the lever 90 and the arm" 88. The cutting deviceis normally supported out ofthread cutting position, as illustrated clearly in Fig. 1." In order to permit the threadcutis secured to a slide 100 which is mounted for upward and downward sliding movement in suitable guides in the machine frame. To permit the cutting device to be adjusted vertically with relation to the slide, the arm 88 is provided with a slot 102 and the cutting device is secured to the slide by means of a screw 101 passing through the slot and screwed into a. projecting portion ofthe slide. This provision for adjustment enables the cutting device to be brought into the proper cutting position with relation to the thread.

When the work has been pushed forward with relation to the gripping device to withdraw the gripping device from the thread loop of the seam, and to draw the free end of the thread beneath the loop,the cutting device is moved downwardly fromthe position. in which it is shown in Figs. 1 and 2, to bring the blades of the cutting device which are then open on opposite sides of the thread extending between the gripping device and the work, and the blades thereof are then closed to sever the thread. The mechanism for imparting the vertical movements to the cutting device to place said device in and out of thread cutting position at the proper.

times in the operation of the machine, comprises a cam actuated lever 108 pivoted on the stud 110 and provided with a recess at its forward extremity which receives a block 112 journaled on a screw stud 114 secured to the slide 100. At its rear end the lever 108 carries a roll'116. which engages a cam groove 118 in the cam disk as. When the cutting device has been moved downwardly into cutting position, the movable blade thereof is moved relatively to-the fixed blade to sever the thread by the engagement of the forwardly extending arm of a lever 120 with a'roll 122 mounted on the upper end of the lever 90. The lever 120 is pivoted upon a vertical stud 124i, and is provided with a cam roll 126 which engages a cam groove 128 in the cam disk 62 wherebythe lever is actuated at the proper time in the operation of the machine to close the blades of the cutting device. After the thread is severed between the gripping device and the work, the jaws of the gripping device are opened to release the portion of the thread which is gripped between them, and the partsare restored by their respective operating mechanisms to the relative positions illustrated in Fig. 1.

The main shaft 26 of the machine is driven by means of a belt passing about a pulley 130 loosely mounted on the shaft. The pulley 130 is connected with the shaft by means of a clutch mechanism which is controlled by a treadle, so that each time the treadle is depressed the clutch is engaged, and the shaft is driven a part of a revolution and is then automatically stopped in a definite position.

When the work has been presented to the machine, and manipulated to insert the awe of the gripping device beneath a loop of thread ofthe seam, thetreadle is depressed by the operator, thereby engaging the clutch and starting the machine. The shaft is rotated throughpa-rt of a revolution suflicient to open the. jaws of the-gripping device and to project the thread receiving hook between said'jaws into thread receiving position, as illustrated in Fig. 8. The shaft is then automatically stopped, so that the end portion of the thread may be manipulated to locate the same in proper tying relation to the gripping device and then placed in the hook 42 by the operator. After this has been done, the operatoragain depresses the treadle to start the machine, and the shaft rotates through the remaining part of a revolution to complete the thread fastening and cutting operation, and is automatically stopped when the parts of the machine are restored to their initial positions. The clutch mech anism for connecting the pulley with the shaft 26 comprises a cylindrical collar 132 secured in any suitable manner to the shaft 26. A sleeve 136 is secured to and preferably formed integral with the collar 132, said sleeveextending to the left (Fig; 3) from the collar and projecting within a cylindricalrecess 138 in the pulley 130. The sleeve 136 is slabbed off or flattened at the points indicated at 1&0, and clutch rolls 142 are arranged between the flattened portions of the sleeve 136 and the adjacent face of the recess 138 in the pulley 130. The construction and arrangement of the parts are such that when the clutch rolls occupy a central position with relation to the flattened portions of the sleeve the pulley 130 will rotate freely about the sleeve, but that when the clutch rolls are moved in the direction of rotation of the pulley with relation to the sleeve the rolls will frictionally engage the flattened portions of the sleeve and the adjacent face of the recess in the pulley 130, and cause the driving of the sleeve by the pulley. In order to actuate the clutch rolls to clutch the pulley to the sleeve, and to unclutch the pulley therefrom, a' collar 1% is mounted on the sleeve 136 between the collar 132 and the adjacent portion of the pulley 130, and is provided with a series of spaced lugs projecting to the left (Fig. 3) into the recess in the pulley 130, and the clutch rolls 142 are located in the spaces between these lugs. The collar 132 is provided with pins 1 :8 which project laterally therefrom and engage in slots 150 in the collar 144C. The collar- 132 is connected with the collar 144 by means of a tension spring 152 located in an arc shaped recess in the collar 1% and attached at one end to a pin 154: secured in the collar 14%, and atthe other to a pin 156 secured in the collar 132. The spring 152 norengagement with the pulley 130' and the sleeve 136, and thereby to cause the pulley todrive the shaft26. When, therefore, the

collar 14-4 is free to be actuated by the spring, the shaft is continuously rotated by thepulley, and during the rotation ofthe shaft the pulley 130,.thecollar 144, and the collar 132 rotate in unison.

The'pulley is unclutched fromthe shaft,

and the rotation of the shaft is arrested, by

stopping the rotation of the collar144. The

continued rotation of the collar 132,'due to the momentumof the machine then causes a relative movement between the clutch rolls 142;and the'flattened clutch surfaces of the sleeve 136 such as to unclutch the pulley from-the sleeve. When the rotation of the collar 144 is arrested, the rotation;of the'col- 71211132 on the shaft is resisted by thespring 1-52,-which will tend to arrest the rotary movement: of. the shaft. Should the resistance of this spring not be sufficient to stop the forward movement of the-shaft, the rela- ,ment or shoulder 164 on said rod by a coiled "spring 166surrounding the rod and inter of the path of-the projections .160 by swing- .tive movement. between the collar 144 and the collar 132 will cause theclutch rolls 142 to wedge between the rea'r portions of the clutch faces'140 of the sleeve 136 and the adjacent face-of the recess in thepulley 1 30,

and thereby arrest the rotation of the shaft.

The rotation of the collar 144 is arrested to throw the clutch rolls out of clutching engagementwiththe sleeve 136 and with the pulley 130 by interposing a projection on-a stop block 158 in thepath of a lug or projection 160 formed. on the .collar 144. In

the illustrated embodiment of the'invention there are two projections 160 on the collar arranged substantially a quarter of a revolution apart. Both these, lugs coiiperate with the projection on the. stop block 'lugs 160whi1e the treadle is depressed,.,the

158 in substantially the same manner, and are provided to enable the clutch to be disengaged andthe rotation of the shaft arrested 7 in two difi'erent positions of the yieldingly heldin en'gagementwith an abutposed between the block and a nut 168 threaded onthe'rod.v The lower end of the rod is threaded into the upper arm 170 of a lever 170172+ attached to a shaft. 174

whichis journaled in hearings in the frame ing thelever- The lever 170172 is swung in-a direction to carry the n-projection'on the i stop block 158 into'thepath of one, of the projections 16O-by a coiled spring 176seat e l la one e d-in thea mlfi Qffihe ee;-

are two sets of and engaging at its outerend a projection The'jmovement of the; lever ITO-"-17 2 under the action of'the spring 176 is'limited by a stoparm 180 on the 178 on. the frame.

frame which is arranged to be engaged by ,an abutment screw 182 threaded into the arm 1700f the lever. '7 Connecting mechanism islprovided between the lever 170 172 and the treadle; which'mechanism is so con- I 3 structed and arranged that by the depression of the 'treadle the lever 170 172 is swung in the direction to carry the projection onthe block 158 out of the path ofthe lugs 160. Said mechanism comprises an arm 184 fixed to the shaft 17 4 and provided with a pin 186- adapted to be engaged by a arm engaging the ,pin186and withthe shoulder 188- below; the pin by a coiled spring 196 interposed: between a shoulder on said arm and theforward arm of the lever 194. The lever 194 is pivoted on a shaft 198 and is connected with a treadle (notshown) by means of atreadle rod 200. The rear T arm of the lever 194 is lift'edupon the re le'aseof the treadle by a coiled spring 202. 'In the drawings the parts are shown in the positions which they assume when the trea dle is'released andthe clutch is'disengaged. When the treadle is depressed, by'the engagement of the shoulder188 with the pin 186, the shaft174 will be swung in its bear ings, thereby swinging the lever 1-70 17 2- in a direction to carry the projection on the stop block out ofengagement with the lug 160; In order to-disconnect the lever 194 block may be swung forwardly to restore the from the lever 170172, so that'the stop projectionthereonto the path of one ofjthe arm 190'is provided with an extension 204 tion to be engaged by eithergof thelug's 206 on the cam disk. fThe enga'gernent of-o'ne of these lugs with the. extension; 204 w ll.

which projects upwardly to a point adjacent"? ,thejaeriphery of the camdisk 24 interposishaft. The stop block 158 is slidingly.mount-' l ed on the outer end of a rod 162 and is swing the arm l90-rearwardlyso as to.re-

lease theshoulder 188, from beneath the pin 186, andwhen this occurs the lever; 170%1 72 isactuate'd by. the spring176 to swing the stop block forwardly, thereby bringing the i, Whe'nf'the' driving was as. beet clutched: from :the main. shaft, and the rotation of-the shaft has been arrested," the col- 1lar 132-and theshaft are held from reverse .rotation underthe action of the, .spring 152 pawl 208 which engages onelof a series I by ofteeth 2'1Q formed onthe collarl32. There $22592 itl ei el e 132 projection thereon intolthe path. of'one of 'the lugs'160 ranged substantially a quarter of a revoluacted upon by a leaf spring 214: mounted on said arm.

As stated above, the two projections 160 and the two series of teeth 210 are arranged substantially 90 aparton the peripheries of their respective collars. l Vhen the work is first presented to the machine, the parts of the machine occupy'thepositions illustrated in Figs. 1, 2, 3, i and 5 of the drawings. When .the work has been positioned as shown in Fig. 7, the operator depresses the treadle, thereby releasing the projection on the stop block from the projection 160 which it engaged, and allowing the clutch to be actuated to clutch the driving pulley to the main shaft of the machine. The rotation of the shaft will-bring the first or lower projection 206 into engagement with the extension 204 on the arm 190 before the second lug 160 reaches a point opposite the projection on the stop block, to release the shoulder 188 on said arm from the pin 186, and permit the shaft 170-172 to be actuated to swing the stop block forwardly to bring the projection thereon into the path of the second lug 160. The main shaft of the machine will therefore rotate a quarter of a revolution, or until the second lug 160 engages the projection on the stop block. During this part of the revolution of the shaft, the jaws of the gripping device are opened, and the thread receiving t hook 42 is projected between said jaws,

thereby bringing the hookand the gripping device into the relative positions shown in Fig. 8. The operator then draws the end portion of the thread under the gripping device and over the thread loop beneath which the gripping device is inserted, places the end of the thread in the hook 452 and releases the treadle, so that the lever 19% may be actuated by the spring 202 to swing the forward arm of the lever downwardlyand thereby bring the shoulder 188 on the arm 190 beneath the pin 186. Then when the treadle is again depressed the clutch will be engaged to rotate the shaft through a part of a revolution, and the stop mechanism will act to disengage the clutch and arrest the rotation of the shaft in substantially the samemanner as before. After the second depression of the treadle', however, the shaft will execute substantially threequarters of a revolution before it is brought to rest. During this three-quarters of a revolution of the shaft, the thread fastening and cutting devices are actuated to tie the end of the thread and to sever the thread close to the work, and are then restored to their initial work receiving positions.

While the machine embodying the present invention as illustrated and described is constructed and arranged to tie or fasten the free end of thethread in a particular manner, it is to be understood that the machine may be employed in fastening the end of the thread in other ways than that shown in this application, and that the manner in which the thread is fastened will vary with the character of the seam, and with variations in the way in which the work is presented to the machine.

It is also to be understood that the invention is not limited to the particular construction and arrangement of parts of the illustrated embodiment of .the invention, but that the invention may be embodied in any form within the scope of the claims. I I Having explained thenature and object of the invention, andhaving specifically described a machine embodying the same in its preferred form, what is claimed is 1. A thread end fastening machine, having, in combination, a device'constructed for insertion beneath a thread loop forming a part of aseam for drawing the free end of the thread at the end of the seam beneath the loop, and means for relatively actuating said device and the work to withdraw the device from the loop and thereby draw the free end ofthe thread beneath the loop.

2. A thread end fastening machine,having, in combination, a gripper for insertion beneath a loop of thread forming part of a seam, and means for relatively moving the work and =,the gripper to withdraw the gripper from the loop and thereby draw the free end of thethread beneath the loop to fasten the same. 7

3. thread end fastening machine, having, in combination, a gripper for insertion beneath a loop of thread forming part of a seam, comprising relatively movable thread gripping jaws, means for relatively actuating the jaws of the gripper to receive and grip the free end of the thread, andmeans for relatively moving the work and the gripper to withdraw the gripper from the loop and thereby'draw the free end of the thread beneath the loop to fasten the same.

t. A thread end fasteningmaehine, having, in. combination, means 'for supporting the work in fastening position, and means for drawing the free end of the thread at "theend of a seam beneath a loop of thread forming part of the seam to fasten the same.

A thread end fastening machine, having, in combination, thread gripping means i for insertion bene'ath 'a. loop of thread forming part of a seam. means for placing the end of the thread in position to be seized "by the thread gripping means, and means for relatively moving the thread gripping ing, in combination, a devicefor drawing the free end of the thread at the end of a seam beneath a loop of thread forming part of the seam constructed for insertion beneath the loop, means for relatively moving said device and the work to withdraw the device from the loop and thereby draw the free end of thethread beneath the loop, and means for severing the free end of the thread between said device and the work.

7. A thread end fastening machine, having, in combination, means for fastening the free end of the thread at the end of a seam, to a thread loop forming part of the seam, and means for severing the free end of the thread close to the work.

8. A thread end fastening machine, having, in combination, means for fastening the free end of the thread at the end of a seam to a thread loop forming part of a seam, and a thread cutting device for severing the free end of the thread upon the completion of the fastening operation.

9. A thread end fastening machine, having, in combinatiommeans for fastening the free end of the thread at the end of a seam to a thread loop forming part of a seam and a thread cutting device for severing the free end of the thread upon the completion of the fastening operation normally supported out of thread cutting position, and means for moving said thread cutting device into and out of thread cutting position.

10. A thread end fastening machine, having, in combination, a device for drawing the free end of the thread at the end of a seam beneath a loop of thread forming part of, the seam constructed for insertion beneath the said loop, and a thread finger about which the free thread is drawn in placing the work in thread fastening position.

11. A thread end fastening machine, having, in combination, a device for drawing the free end of the thread at the end of a seam beneath a loop of thread forming part of the seam, constructed for insertion beneath said loop, and a thread finger about which the free thread is drawn in placing the work in thread fastening position, arranged for adjustment with-relation to said device.

12. A thread end fastening machine, hav ing, in combination, a thread gripper for insertion beneath a loop of thread forming part of a seam, a pusher for pushing the copies of this patent may be obtained for work forward with relation to the gripper to withdraw the gripper fromthe loop and thereby draw the free end of the thread beneath the loop, and means for actuating the pusher.

13. A thread end fastening machine, hav- I ing, in combination, a thread gripper for in sertion beneath a loop of thread formlng part of a seam, a pusher for engaging the work to push the work forward with relaaloop of thread forming part of a seam, a thread receiving hook, means for advancing the hook between the jaws in position to receive the end of the thread and for there'- after retracting the hook todraw the thread between the jaws, means for opening and closing the aws to receive and grip the, thread, and means for relatively moving the work and the gripping aws to withdraw the jaws from the loop and thereby draw the ing, inv combination, relatively movable thread gripping jaws for insertion beneath free end of the thread beneath the loop to fasten the same. r

15. A thread end fastening machine, having, in combination, a thread gripper for insertion between a loop of thread forming partof a seam, a device for placing the free end of the thread in position to be gripped by the thread gripper, and means for relatively actuating the gripper and the work to withdraw the'gripper from the loop, and thereby draw the free end of the thread beneath the loop to fasten the same.

16. A thread end fastening machine, having, in combinatioma thread, gripper for insertion-beneath a loop of thread forming part of a seam, adevice for placing the end of the thread in position to be grlpped by the thread gripper, means for stopping the machine when the said device has been brought to thread receiving position, and

pletion of the thread fastening operation.

means for stopping the machine at the com- 17. In a thread end fastening machine, a"

frame and a thread grasping device for grasping the free end of the thread mounted. on the'frame and constructed and arranged for insertion beneath a thread loop forming five cents each, by addressing the Commissioner of latentsp Washington, D. C. V 1 p 1 part of a seam and adapted when withdrawn 

